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SAE-500
TM
AND SAE-500
TM
PROBLEMS
(SYMPTOMS)
Battery does not stay charged.
Engine will not idle down to low
speed.
Engine will not go to high idle when
attempting to weld.
Engine will not go to high idle when
using auxiliary power.
Engine goes to low idle but does
not stay at low idle.
No welding output or auxiliary
output.
No auxiliary power.
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your
Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
SEVERE DUTY
TM
1. Faulty battery.
2. Faulty engine alternator.
3. Loose or broken lead in charging
circuit.
4. Loose fan belt may need
tightening.
1. Idler switch in HIGH idle position,
make sure switch is set to
AUTO.
2. Faulty relay.
1. Poor work lead connection to
work.
2. Welding Terminals switch in
wrong position (CV Mode).
3. No open circuit voltage at output
studs.
1. Broken wire in auxiliary current
sensor wiring.
2. Auxiliary power load is less than
100 watts.
1. Faulty Idler relay switch for
current sense board.
1. Broken lead in rotor circuit.
2. Faulty flashing diode or resistor.
3. Faulty rotor.
1. Open breakers may need to be
reset.
2. Faulty receptacle.
3. Faulty auxiliary circuit wiring.
4. GFCI tripped.
POSSIBLE
CAUSE
CAUTION
E-5
TROUBLESHOOTING
RECOMMENDED
COURSE OF ACTION
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.
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